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Finding the Fourth Proportional to 250,247.52, 345,346.08 and 137,062.98

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Solution

The fourth proportional to 250,247.52, 345,346.08 and 137,062.98 is: 189,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,247.52 : 345,346.08 = 137,062.98 : x
  2. Step 2: Convert to fraction form
    250,247.52/345,346.08 = 137,062.98/x
  3. Step 3: Cross multiply
    250,247.52x = 345,346.08 × 137,062.98
  4. Step 4: Simplify right side
    250,247.52x = 47,334,162,856.12
  5. Step 5: Solve for x
    x = 47,334,162,856.12/250,247.52
  6. Step 6: Final answer
    x = 189,149.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.